The TCache package

TCache is a transactional cache with configurable persitence. It allows conventional
STM transactions for objects that syncronize with
their user defined storages.
State in memory and into permanent storage is transactionally coherent.

The package implements serializable STM references, access by key and by record field value, triggers,
full text and field indexation, default serialization and a query language based on record fields

This version add memoization and a persistent and transactional collection/queue